The FNIRSI FNB58 is an advanced USB port tester and fast charging technology device that allows you to check power parameters, protocol compatibility, and accessory quality. It features a clear display, very high measurement accuracy, and broad support for fast charging standards from popular brands.

Features of the FNIRSI FNB58:

• Real-time and offline analysis of voltage, current, power, and charging waveforms.
• Charger and cable quality testing.
• Bluetooth connectivity and application support for data monitoring.
• Support for PD3.1 standards with EPR AVS function up to 28 V and PD cable detection with power up to 240 W.

The high-resolution 2-inch LCD screen displays complete and highly accurate measurement data. A resolution of up to 0.0001 allows detection of even the smallest changes in voltage, current, and power in real time.

The FNIRSI FNB58 features:

• High-current USB-A input and output ports.
• Type-C and Micro input ports and Type-C output port.
• Function buttons and a dedicated PD switch.

Compatible with the most popular fast charging standards such as PD 2.0 and 3.0, PPS, QC 2.0 and 3.0, FCP, SCP, AFC, PE, DASHVOOC, and SuperVOOC. This enables seamless operation with major manufacturers' ultra-fast charging technologies.

The device immediately detects incorrect charging and offers offline curve recording for up to 9 hours, allowing you to analyze the charging process after completion. Monitoring D+ and D- curves provides a complete picture of protocol changes in real time.

It supports diagnostic cables and real performance readings from the CC line in PD cables with E-Marker chips.